Haoulduperrouzel



(No Model.) 2 SheetsSheet 1. J. OUELLETTE & R. DUPERROUZEL. STOP MOTION FOR KNITTING MACHINES.

No. 592,440. Patented Oct 26,1897.

3 awe/whom Joszpb OUELLLTTE- av Racul DUPERROUZEL (No Model.) 2 SheetsSheet 2.

J. OUELLETTE & R. DUPERROUZEL.

STOP MOTION FOR KNITTING MACHINES.

No. 592,440. Patented Oct. 26,1897.

FIG.

Jcsqpb Ouaurrra m Raoul DUPERROUZEL anon @0124 THE Noam: mus ca. PnoTouTna. wmmuwn, n. c.

Niinn STATES ATENT rricnt JOSEPH ()UELLETTE AND RAOUL DUPERROUZEL, OF ST. IIYACINTIIE, CANADA.

STOP-MOTION FUR KNlTTlNG-MAClHNES.

SFECIFIdATION forming part of Letters Patent No. 592,440, dated October 26, 1897.

' Application filed January 28, 1897. Serial N0.6Z1,ll3. (N0 model.)

To ctZZ whom, it may concern:

Be it known that we, J OSEPH OUELLETTE, a citizen of the Dominion of Canada, and RAOUL DUPERROUZEL, a citizen of the French Republic, residing at- St. Hyacinthe, in the county of St. Hyacinthe, Province of Quebec, Canada, have invented certain new and usef ul Improvements in Stop-Motions for Knitting-Machines; and we do hereby declare the following to be a full, clear, and exact description of the inventiou,such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to stop-motions for kniHing-machines; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure l is a front view of the device, showing the circuit broken. Fig. 2 is a side view of the same. Fig. 3 is afront view of the device, showing the circuit closed. Fig. l is a side view, also showing the circuit closed. Fig. 5 is a rear View of the yarnplate and other parts attached to the upright.

This device is specially adapted for use in connection with knitting and other similar machines, and it is connected with the yarn at any convenient point between the bobbin and the needle. The electric circuit is normally open, and is closed automatically, first, when a bobbin runs off; second, when the yarn breaks, and, third, when the yarn becomes too tight. \Vhen the circuit is closed, a belt-shifter is operated and is caused to stop the machine. This belt-shifter is of any approved construction, and is not hereinafter described and shown, as it does not form a part of the present invention.

A is a frame provided with an upright a.

A is a plate of insulating material carried by the frame.

B is the yarn-plate, provided with one or more holes I) for the yarn.

B is a screw for securing the plate B to the frame, and b is a slot in the plate B which permits the plate to be adjusted vertically before the screw 13 is tightened. A projection 0 is formed on the lower part of the plate B and engages with a slot 0 in the upright a, so that the plate is guided in a vertical direction.

C is the yarn, which passes from the bobbin to the needle of the knitting-machine in the direction of the arrow in Fig. 2. The yarn passes through the hole I) and through an eye (Z, carried by an arm D. The arm D is pivoted by a pin (1 to a lug D on the upright a, audit is provided with an extension 0 at one end, the eye (Z being at the opposite end of the arm.

E is a pair of shears. The stationary jaw is secured to 1he upright a, and the movable jaw E is pivoted to the upright by the pin 6. The jaw E is provided with an armfat its lower part, having a notch f in its end.

F is a spring attached to the arm f and to the upright a and operating to close the shears. A projection g on the jaw E rests on a pin g, projecting from the upright a, when the shears are closed:

G is a trigger which is pivoted to the upright a by the pin G. This trigger has a hooked end it, which engages with the notch f and normally holds the shears open against the tension of the spring F, as shown in Fig. 1.

II is a rod pivotally coupling the trigger G with the extension 6 of the arm D.

J is a bell-crank lever pivoted by the pin to the back of the upright a.

J is a light spring arranged between the horizontal arm j of the bell-crank lever and the trigger.

K is a screw engaging with a lug on the frame and bearing against the short vertical arm of the bell crank lever. This screw serves to adjust the tension of the spring J L is a plate of insulating material secured to the upright a. Two binding-posts 2 and 3 are secured to the plate L, and 4 and 5 are two spring contact-jaws secured, respectively, to the said posts.

M is a contact-lever pivoted to the upright a by the pin on, and provided with a handle m for operatingit. with an insulated contact piece 6, which couples the two jaws 4 and 5 when placed in engagement with them. A heel 7 is also formed on the lever M and bears against the arm f. When the handle m is pressed down, as shown in Fig. 1, the trigger is caused to engage with the notch f and holds the shears open.

Two binding-posts 8 and 9 are secured to This lever M is provided the plate A, and and 11 are two spring contact-jaws secured to the respective binding-posts 8 and 9. The conductors are attached-to the binding-posts 3 and 2 and 8 and- 9, and the two positive and the two negative conductors are coupled together.

N is a bracket secured to the plate A, and n is a wire arm pivoted on a pin 01., carried by the said bracket. The arm n is provided with an eye 12 at its free end, and is prevented from being moved too far toward the shears by the stop 13 on the bracket N. A short arm 14 is connected with the arm n and carries a contact-piece 15, which couples the contact-jaws 10 and 11 when the arm 01 drops to the position shown in Fig. 4. The yarn normally supports the arm n, as shown in Fig. 2. When a bobbin runs oif or when the yarn breaks, the arm n falls and makes the circuit. The making of the circuit sets in motion the mechanism which stops the machine. When the yarn becomes too tight and is in danger of breaking, it pulls downward that end of the arm D which carries the eye 01 and raises the extension e and the trigger G against the tension of the light spring .J The trigger releases the pivoted jaw of the shears, and the shears are closed by the spring F. WVhen the shears close, they cut through the yarn. The arm n then drops and the circuit is made, as hereinbefore described. W'hen the shears close, they also force the contact-piece 6 into engagement with the contact-jaws and 5, thereby making the circuit in a second place. This is done as a matter of precaution, so that the circuit may be closed if the contact-piece should fail to act.

\Vhat we claim is- 1. The combination, with a pivoted arm carrying a contact-piece and normally supported by the yarn, and two stationary contact-pieces arranged in the path of the aforesaid oontact-piece; of a pair of spring-actuated shears, a trigger operating to release the said shears when the yarn is drawn too tight, a movable contact-piece operated by the said shears, and two stationary contact-pieces arranged in the path of the last said contactpiece, the circuit being made in two places when the yarn is cut by the shears, substantially as set forth.

2. The combination, with means for supporting the yarn; of a pair of shears, a spring for closing the shears upon the yarn, a trigger controlled by the tension of the yarn and normally holding the shears open, two stationary insulated contact-pieces, and a pivoted insulated contact-piece operated by the said shears and completing the circuit when the shears close, substantially as set forth.

3. The combination, with a frame, of a trigger pivoted to the frame, shears controlled by the said trigger, a bell-crank lever pivoted to the frame, a light spring arranged between the trigger and one arm of the said bell-crank lever, and a screw carried by the frame and bearing against the other arm of the said bell-crank lever, whereby the tension of the said spring may be adjusted, substantially as set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

JOSEPH OUELLETTE. R. DUPERROUZEL. Witnesses:

T. BEAUOHAMP, T. O. STIFEELS. 

